Patent GB-420721-A (GB)
Title: Improvements in and relating to typewriting-calculating machines
IPC: B41J11/48
Filed: 1933-11-20
Abstract: 420,721. Typewriters &c. MERCEDES BUROMASCHINEN-WERKE AKT.-GES., Benshausen, Prussia, Germany. Nov. 20, 1933, No. 32274. Convention date, Nov. 22, 1932. Addition to 380,551, [Group XIX]. [Class 100 (iv)] Sheet feeding and guiding arrangentents ; column - printing arrangements; line - spacing mechanism.-In a combined typewriter and calculating-machine having, as described in the parent Specification, an auxiliary paper-carriage which can move with the main or totalizer carriage and is also automatically movable relatively thereto, the auxiliary carriage is provided with sheet-feeding rollers arranged above a platen mounted in the main carriage, and driving-means is provided for moving the auxiliary carriage relatively to the main carriage. Line-spacing mechanism for the feed-rollers may be operated during the relative movement of the auxiliary carriage. The auxiliary and main carriages may support an invoice and a daybook sheet respectively, the relative movement of the auxiliary carriage and the line-spacing movement of the feed-rollers causing the items of an account, to be typed in a number of lines on the invoice and in one line on the day-book sheet. In the apparatus shown in Figs. 2, 4, and 8, an auxilairy carriage 197, provided with feedrollers 267a, 267<h> for feeding an invoice, is supported by a frame 1200 consisting of plates 201, 202 connected by rods 200, 205, the rod 200 being trunnioned in brackets 198<d>, 198e on the end plates 198, 198<a> of the main carriage 4 which supports a platen 4<a>, column-totalizers 71-94, and line-totalizers 111, 112. Rollers 223, 224, 229, mounted in yokes 220, 228 on the end plates 217, 218 and cross-bar 225 of the auxiliary carriage, run on the rods 205, 200. The yokes and a finger 233 prevent the auxiliary carriage from lifting. The plates 201, 202 of the frame 1200 have pins 206, 212 which normally rest on the brackets 198<d>, 198<e>, the frame being locked by co-operation of the pin 206 with a hole in a lever 207. When the main carriage is in the extreme right-hand position, the lever is displaced by means of a stationary stop, and the frame can be raised. A releasable catch 213 retains the frame in raised position. The feed-rollers 267a, 267<h> are carried by shafts 267, 267<g>, the shaft 267 being journalled in the plates 217, 218 of the auxiliary carriage, and the shift 267<g> being journalled in a spring-urged yoke 267e pivoted on the plates. The feedrollers pass through slots in a sheet-guiding plate 267<c> provided with adjustable edgeguides 267<c1>. The shaft 267 is provided with a pinion 279 engaging a sector 280 which is pivoted on the plate 218 and is provided with a handle 280<a>. A stop 282 limits movement of the sector in either direction. The shaft 267 is provided also with a pinion 278 co-operating with a pawl 276 on a slide 268 which is mounted on the plate 218 and is provided with a pivoted arm 289 carrying a roller 286 for co-operating with a stationary cam-incline 288. A detent 261, Fig. 8, engages a toothed wheel 266 on the shaft 267. The auxiliary carriage is urged towards the right by means of a spring 238 which is arranged in the rod 200 and is connected to a lug 234. An arm 241 pivoted on the plate 217 co-operates with notches 257 .. 257d in the rod 205, and a pawl 251 pivoted on the arm co-operates with notches 259<a> ... 259<d> in the rod. The arm 241 is provided with a lug 245 for co-operation with a stationary cam-incline 246. The arm co-operates periodically with raised parts 244b ... 244e on a slide 244<a> which is mounted for limited longitudinal movement on the main carriage, and has a lug 244<m> in the path of the line-spacing lever 133. The usual mechanism, controlled by margin stops R, R<x> and a key 295, is provided for returning the main carriage and operating the line-spacing lever. The slide 244<a> is provided with a knob 244f for manually returning the main carriage. When the main carriage is in extreme right-hand position, the frame 1200 is raised, and the day-book sheet S is placed on the apron 203 and passed around the platen 4<a>. When the frame is lowered, pressure-rollers 205b, mounted thereon, hold the day-book sheet in contact with the top of the platen. Fingers 205<c> for diverting the daybook sheet are provided on the frame 1200. The day-book sheet is adjusted with reference to the printing line by the aid of an indicator 267<k> consisting of a wire carried by the yoke 267<e>. The usual feed-rollers 205<d> hold the daybook sheet in contact with the bottom of the platen. Before insertion of the invoice R, the edge guides 267<c1> are so adjusted that the invoice is in register with the appropriate part of the day-book sheet, and passes into the longitudinal space between the feed-rollers 205<d>. The handle 280<a> is then pulled forwards and the invoice is passed down the plate 267<c> and into engagement with the feed-rollers 267<a>, 267<h>. When the handle is pulled forwards, the pawl 276 is displaced by means of a pin 275b on the sector, the arrangement preventing jamming of the parts if the slide 268 is operated by means of the incline 288. The handle is then moved backwards to feed the invoice around the platen, and the invoice is adjusted with reference to the printing line by the aid of the indicator 267<k>. The invoice is preferably formed with a folded part serving as a duplicate receipt, a folded carbon sheet being employed for transferring the impressions from the receipt to the duplicate, and thence to the day-book sheet. The sequence of operations described below occurs during the typing of matter in a number of lines on the invoice, and the concurrent typing of this matter in one line on the day-book sheet. The matter may be arranged on the invoice in five lines showing the name and address of the customer, and items of gas, water, lighting current, and power current accounts respectively, column-totalizers 71 .. 94, and line-totalizers 111, 112 being employed in the customary manner for computing the items. Initially, the auxiliary carriage 197 is in the position shown in Fig. 2, the arm 241 being in engagement with the notch 257 in the rod 205, and the yoke 220 being in engagement with a stationary stop 294. When the name and address have been typed, the arm 241 is raised by co-operation of the lug 245 with the incline 246, and the spring 248 is permitted to draw the auxiliary carriage towards the right-hand. The auxiliary carriage is arrested by engagement of the arm with the notch 257<a>, the pawl 251 engaging the notch 259<a> to prevent rebound. During movement of the auxiliary carriage, the roller 286 co-operates with the incline 288 to displace the slide 268, and the pawl 275 is effective to advance to feedrollers 267<a>, 267<h> and thereby line-space the invoice. The second, third, fourth, and fifth lines on the invoice are successively typed, the auxiliary carriage being automatically moved into successive positions determined by engagement of the arm 241 with the notches 257<b>, 257<c>, and 257<d>, and the pawl 276 being automatically operated to impart three successive linespacing movements to the invoice. The matter typed in five lines on the invoice is typed concurrently in one line on the day-book sheet. When the fifth line on the invoice has been typed, the platen-carriage and auxiliary carriage are returned, and the line-spacing lever 133 displaces the slide 244<a>. After arrest of the auxiliary carriage by the stop 294, the arm 241 is raised repeatedly by co-operation with the raised parts 244<e> ... 244<b> of the slide 244<a> to permit further movement of the main carriage. When the main carriage has been returned to the extreme right-hand position, the arm engages the notch 257. The rod 205 can be readily replaced by one having a different arrangement of notches. When the machine is used as an ordinary typewriter, the camincline 246 is depressed, release of the arm 241 being thereby prevented, and the auxiliary carriage being allowed to remain in the left-hand position on the main carriage.